| 摘要 |
PROBLEM TO BE SOLVED: To provide a piezoelectric transformer in which vibration sound is prevented effectively by absorbing high frequency vibration generated from a piezoelectric element. SOLUTION: In order to prevent high frequency vibration, the piezoelectric transformer is provided, at a part of the case for holding a piezoelectric element, with a plurality of resilient protrusions made, integrally with the case, of the same material as the case.
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